Kesterite CZTS nanocrystals: PH-dependent synthesis

Mahesh Suryawanshi; Seung Wook Shin; Woo Ri Bae; Kishor Gurav; Myun Gil Kang; Ganesh Agawane; Pramod Patil; Jae Ho Yun; Jeong Yong Lee; Annasaheb Moholkar; Jin Hyeok Kim

doi:10.1002/pssa.201330384

Kesterite CZTS nanocrystals: PH-dependent synthesis

Mahesh Suryawanshi, Seung Wook Shin, Woo Ri Bae, Kishor Gurav, Myun Gil Kang, Ganesh Agawane, Pramod Patil, Jae Ho Yun, Jeong Yong Lee, Annasaheb Moholkar, Jin Hyeok Kim

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

The kesterite Cu₂ZnSnS₄ (CZTS) nanocrystals (NCs) were successfully synthesized using a relatively simple and one-step hydrothermal route. The structural, compositional, and optical properties of the kesterite CZTS NCs have been studied in detail. The pH-dependent CZTS phase formation has been elucidated for the first time. The X-ray diffraction and Raman spectroscopy confirmed the formation of a main phase kesterite CZTS structure only at pH 7. However, for pH values (4.3, 5, and 9), the formation of CZTS alongwith few secondary phases like Cu₂SnS₃ (CTS), Cu_2-xS, and SnS₂/Sn₂S₃ have been detected. CZTS NCs of size 10-100nm were obtained at 200°C and pH 7. The synthesized NCs showed a pH-dependent variation in optical band gap values from 1.15 to 1.44eV, which is near optimum value for low cost thin film solar cells.

Original language	English (US)
Pages (from-to)	1531-1534
Number of pages	4
Journal	Physica Status Solidi (A) Applications and Materials Science
Volume	211
Issue number	7
DOIs	https://doi.org/10.1002/pssa.201330384
State	Published - Jul 2014
Externally published	Yes

Keywords

hydrothermal synthesis
solar cells
thin films

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/pssa.201330384

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@article{d39d14f4168344c884909044edf4d89e,

title = "Kesterite CZTS nanocrystals: PH-dependent synthesis",

abstract = "The kesterite Cu2ZnSnS4 (CZTS) nanocrystals (NCs) were successfully synthesized using a relatively simple and one-step hydrothermal route. The structural, compositional, and optical properties of the kesterite CZTS NCs have been studied in detail. The pH-dependent CZTS phase formation has been elucidated for the first time. The X-ray diffraction and Raman spectroscopy confirmed the formation of a main phase kesterite CZTS structure only at pH 7. However, for pH values (4.3, 5, and 9), the formation of CZTS alongwith few secondary phases like Cu2SnS3 (CTS), Cu2-xS, and SnS2/Sn2S3 have been detected. CZTS NCs of size 10-100nm were obtained at 200°C and pH 7. The synthesized NCs showed a pH-dependent variation in optical band gap values from 1.15 to 1.44eV, which is near optimum value for low cost thin film solar cells.",

keywords = "hydrothermal synthesis, solar cells, thin films",

author = "Mahesh Suryawanshi and Shin, {Seung Wook} and Bae, {Woo Ri} and Kishor Gurav and Kang, {Myun Gil} and Ganesh Agawane and Pramod Patil and Yun, {Jae Ho} and Lee, {Jeong Yong} and Annasaheb Moholkar and Kim, {Jin Hyeok}",

year = "2014",

month = jul,

doi = "10.1002/pssa.201330384",

language = "English (US)",

volume = "211",

pages = "1531--1534",

journal = "Physica Status Solidi (A) Applications and Materials Science",

issn = "1862-6300",

publisher = "Wiley-VCH Verlag",

number = "7",

}

TY - JOUR

T1 - Kesterite CZTS nanocrystals

T2 - PH-dependent synthesis

AU - Suryawanshi, Mahesh

AU - Shin, Seung Wook

AU - Bae, Woo Ri

AU - Gurav, Kishor

AU - Kang, Myun Gil

AU - Agawane, Ganesh

AU - Patil, Pramod

AU - Yun, Jae Ho

AU - Lee, Jeong Yong

AU - Moholkar, Annasaheb

AU - Kim, Jin Hyeok

PY - 2014/7

Y1 - 2014/7

N2 - The kesterite Cu2ZnSnS4 (CZTS) nanocrystals (NCs) were successfully synthesized using a relatively simple and one-step hydrothermal route. The structural, compositional, and optical properties of the kesterite CZTS NCs have been studied in detail. The pH-dependent CZTS phase formation has been elucidated for the first time. The X-ray diffraction and Raman spectroscopy confirmed the formation of a main phase kesterite CZTS structure only at pH 7. However, for pH values (4.3, 5, and 9), the formation of CZTS alongwith few secondary phases like Cu2SnS3 (CTS), Cu2-xS, and SnS2/Sn2S3 have been detected. CZTS NCs of size 10-100nm were obtained at 200°C and pH 7. The synthesized NCs showed a pH-dependent variation in optical band gap values from 1.15 to 1.44eV, which is near optimum value for low cost thin film solar cells.

AB - The kesterite Cu2ZnSnS4 (CZTS) nanocrystals (NCs) were successfully synthesized using a relatively simple and one-step hydrothermal route. The structural, compositional, and optical properties of the kesterite CZTS NCs have been studied in detail. The pH-dependent CZTS phase formation has been elucidated for the first time. The X-ray diffraction and Raman spectroscopy confirmed the formation of a main phase kesterite CZTS structure only at pH 7. However, for pH values (4.3, 5, and 9), the formation of CZTS alongwith few secondary phases like Cu2SnS3 (CTS), Cu2-xS, and SnS2/Sn2S3 have been detected. CZTS NCs of size 10-100nm were obtained at 200°C and pH 7. The synthesized NCs showed a pH-dependent variation in optical band gap values from 1.15 to 1.44eV, which is near optimum value for low cost thin film solar cells.

KW - hydrothermal synthesis

KW - solar cells

KW - thin films

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U2 - 10.1002/pssa.201330384

DO - 10.1002/pssa.201330384

M3 - Article

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VL - 211

SP - 1531

EP - 1534

JO - Physica Status Solidi (A) Applications and Materials Science

JF - Physica Status Solidi (A) Applications and Materials Science

IS - 7

ER -

Kesterite CZTS nanocrystals: PH-dependent synthesis

Abstract

Keywords

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